»
Dinosaur Predators

Theropod food preferences and the intensity of predation. Because predation by and on dinosaurs often resulted in the destruction of prey items, it is difficult to quantify the food preferences of theropods, or to assess the intensity of their predation on herbivorous dinosaurs, in the way that can sometimes be done for marine invertebrates (e.g., by determining the relative frequency of drilled bivalve or brachiopod shells). However, some inferences can be made by examining bite marks and...

Dinosaurs originated in the Late Triassic Heckert and Lucas, 1998 Hunt et al., 1998 , and started out as modest-sized animals compared with many of their non-dinosaurian neighbors it is very likely that Triassic dinosaurs frequently fell prey to or were scavenged by large phytosaurs and FIGURE 2 Portion of the fibula of an herbivorous dinosaur Museum of the Rockies 549, Hypacrosaurus , with a theropod tooth embedded in it arrow . The exposed portion of the tooth is about 5 mm long. FIGURE 2...